EASY question help!????

Question

For each of the following, determine whether the resulting aqueous solution will be acidic, basic, or neutral.

Na2CO3

NaNO3

H2CO3

Answer 1

Na2C03 - basic

NaNO3 - neutral

H2CO3 - close to neutral but more on the acidic side of the pH scale

Hope this helps!

Answer 2

Im sorry but i dont think any of us are in your grade lol

Answer 3

I'm sorry did you say easy ?

Answer 4

H2CO3 is carbonic acid, it's obviously acidic.  (Acid = H+)

To evaluate the acidity of an ionic compound, you can look at it as the product of an acid-base reaction.  The anion comes from acid, the cation comes from base.

H-Anion + Cation-OH ->  H2O + Cation-Anion

Basically just go backward, Na2CO3 ... cames from NaOH and H2CO3.

NaOH is a very strong base, H2CO3 (carbonic acid) is a weak acid.

Strongly basic + weakly acidic = weakly basic

So, Na2CO3 is a weak base.

NaNO3 came from NaOH and HNO3.

NaOH is a very strong base, HNO3 (nitric acid) is a very strong acid.

Strongly acidic + strongly basic = neutral

So, NaNO3 is neutral.

Answer 5

Stop makin us do your homework c**p!!

Answer 6

that is actually easy, but i freaking forgot how to calculate to solve that kinda stuff.

Answer 7

Hey! Do your own homework......that's how you get edgamacated!! LOL

Answer 8

EASY????????? that is definetly NOT easy! good luck!

Answer 9

Na2CO3 Sodium Carbonate aka washing soda, quite alkaline

NaNO3 Sodium nitrate, neutral

H2CO3 Carbonic acid aka soda water, acidic

Answer 10

Na2CO3 is a salt resulting from the reaction of a strong base (NaOH) and a weak acid (H2CO3). Its aqueous solution is basic (pH about 11)

NaNO3 is a salt resulting from the reaction of a strong base (NaOH) and a strong acid (HNO3). Its aqueous solution is neutral.

H2CO3, an acid, is obviously acidic.

Answer 11

1st one is basic.

2nd one basic.

3rd one is acidic

Answer 12

?

Answer 13

Na2CO3 & NaNO3 are acids, because of their Na's. But H2CO3 is basic.

Answer 14

huuhhh?

Answer 15

wat we're looking at is "hydrolysis", the reaction of a salt

with water.

You must know the strong acids and bases in order to use the system.

Strong acids: HCl, HBr, HI, HNO3, HClO4, H2SO4 (1st H only)

Strong bases: Group IA hydroxides (not HOH) and Ca(OH)2, Sr(OH)2, and Ba(OH)2

Here's the system:

Look at the cation and anion of the salt.

1. If the cation comes from a strong base, and the anion comes from a strong acid, the salt will be neutral.

2. If the cation comes from a strong base, and the anion comes from a weak acid, the salt will be basic.

3. If the cation comes from a weak base and the anion comes from a strong acid, the salt will be acidic

4. if the cation and ion both come from weak acids and bases, it is impossible to predict. You must know the relative strengths of the acid and base.

Using this system:

1.sodium nitrate NaNO3 - neutral

2.sodium carbonate Na2CO3 - basic

3.carbonic acid H2CO3-acidic